It has been distributed around the world by the aquarium fish trade, but has so far only been recorded only in the Northern Territory, Australia. It was apparently introduced to billabongs and streams in the vicinity of Alice Springs in the 1940s and 50s for the purpose of mosquito control (Duguid et al. 2002, Allen et al. 2002), but is not yet established (Bomford and Glover 2004).
Habitat and Ecology
IUCN Red List Assessment
Red List Category
Red List Criteria
Lago Enriquillo's level and water conditions depend heavily on the Río Yaque del Sur. The majority of the Yaque water is diverted towards the Azua coastal plain, where it is used for irrigation. Many times the canals that drain Yaque water toward Lago Enriquillo are filled with sediment. In years with low rainfall Lago Enriquillo's water level drops within a short time, exposing large areas of its lake bed. The diversion of irrigation water from Yaque del Sur is a threat to the existence of the lake. During the last 20 years the lake has lost about two thirds of its volume (Schubert 2006).
The watershed of the two lakes was chosen for the first attempt between Dominican and Haitian governments to work closely together in order to improve the environmental situation. The project, the Transboundary Environmental Program (PMT), has a team composed of Haitian and Dominican professionals. It is financially supported from the European Union and the two governments involved. The program PMT intends to establish wise use practices in both lakes and their corresponding watersheds (Schubert 2006).
Relevance to Humans and Ecosystems
The Dominican gambusia (Gambusia dominicensis) is a species of freshwater fish. It is a member of the family Poeciliidae of order Cyprinodontiformes. It is native to two lakes on the island of Hispaniola: Lake Enriquillo in the Dominican Republic and Lake Azuei in Haiti. Spread through the aquarium trade, it is an invasive species in some parts of the world.
- Froese, Rainer and Pauly, Daniel, eds. (2008). "Gambusia dominicensis" in FishBase. May 2008 version.
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